Power supplies

Here’s a compilation of adapters/power supplies meant for use with guitar pedals. I have not listed pedal-specific power supplies (such as the one that comes with the Whammy, for instance), as they are meant for specific pedals only. I have also not taken my own preferences into account – this is more an effort to present all the options :)

Also, in our globalized world, it is becoming increasingly common for manufacturers to sell the same product under various different brand names. When a particular supply starts to crowd the list with too many rebranded copies/spinoffs, I will leave the one I perceive to be the ”original” unit in the main list, and throw its siblings in a separate list at the end. Hopefully, this will make the main list easier to navigate, as well as making it easier to spot the similarities.

UnitTypeIsolated outputsCapacityNotes
Accel FX Power Source 8
Accel_FX8
Transformer with mains voltage selector.Yes (stated, not tested)Adj 9-18vDC, 50mA
Adj 5-9vDC, 100mA
4 x 9/12vDC, 100mA
2 x 9vDC, 350mA
Courtesy mains outlet.
ADL / Pedalgear Juice Box 3
Toroidal transformer with mains voltage selector.Yes, in groupsIso 1,2: four outputs each. 500mA total @ 9vDC for each group.
Iso 3: 1 output with 250mA, adjustable from 4.6 to 18vDC
Iso 4: 1 output with 250mA, adjustable from 6.5 to 24vDC
Iso 5: 1 output with 1500mA at 12vAC
New version of the ADL Juice Box. Iso 1 and 2 has one output each with sag "dying battery simulator" circuit.Courtesy mains outlet.
Alctron AC2DC (DCT-100)
???Looks like a copy of the T-Rex Fuel Tank Classic. Common ground for the 9vDC outputs, 12vDC and 12vAC outputs might be isolated.
Alctron DCT-200
AC-DCT200
Transformer with mains voltage selector.YesOutputs 1-4: 9vDC/100mA or 12vDC/60mA
Outputs 5-6: 9vDC/250mA or unregulated (14,5vDC at 50mA load, 12vDC at 200mA load)
Outputs 7-8: 9vDC/100mA or variable
12vAC and 12vDC, 250mA each
Also available under other brand names (Fame, Proel, Rifftone etc) - check the "rebranded section" below.
Amperor Voltz/MilliVoltz
Li-Ion battery pack, switching type chargerYes6000mAh battery. Uses separate isolated converters for various voltages, at approx 500mA max each.Provides 100% ripple-free DC voltage, as the power source is a battery. Just keep the battery charged, and you're set!
Artec SPB-8 Power Brick
Digital switching adapterNo8 x 9vDC, 100mA each; two are adjustable 0-12vDC.Top-loaded connections, so it will not allow pedals placed on top of it. 8 cables included, with right-angle plugs. Each output is individually regulated, but not isolated.
Artec SPB-12 Power Brick
Digital switching adapterNo10 x 9vDC, 100mA each
2 x selectable 9/12vDC, 300mA each
Top-loaded connections, so it will not allow pedals placed on top of it. Each output is individually regulated, but not isolated.
Basslab Dual-9-250
? (although I'm guessing transformer)?2 x 9vDC, 250mADanish unit with two (isolated?) groups, each with 250mA.
BBE Supa-Charger

Toroidal transformer with mains voltage selector.YesSix outputs switchable 9/12vDC, 100mA and two switchable 9/16vDC, 200mA. No word yet on if the 16 volt setting is unregulated (like the PP2+ "L6" mode).Similar to the Pedal Power 2+, but without the "sag" function.
Belcat PST-10 Power Station
?No (most likely)8 x 9vDC + two adjustable 6-12vDCPowered from a 15vDC adapter (1000mA). No info on output mA capability. Also sold in some markets under the Crossfire brand.
Biyang Pedal-Power
??2 x 9vDC, 1000mA total
3 x 9vDC, 100mA (total?)
2 x ACA (12vDC?), 1000mA total
2 x 6vAC, 1000mA total (for Biyang tube pedals)
From/for the Biyang "Tonefancier" series. The various groups of jacks could be isolated, as they have different mA ratings, but I don't know.
Boss PSA
Transformern/a200mA @ 9vDCThe grand-daddy of transformer adapters.
Boss PSA-120S, 230S
Digital switchingn/a500mA @ 9vDCNew version of the PSA. More current available from digital switching technology.
Boss PSC
Transformern/a1000mA @ 9vDCOriginally designed to power the BCB-60 pedal board. It is regulated and has the correct plug polarity, so it should work if you need more power than the PSA can deliver.
Burkey Flatliner PRO
Toroidal transformerYes9 individually isolated outputs:
5x9vDC 200mA, 1x12vDC 200mA,
2 adjustable outputs, 1x9/12vAC 1000mA
A very competent power supply. Make sure you have room for it, though - it is quite big.
Burkey Flatliner SIX
Toroidal transformerYes6 individually isolated outputs, each with 100mA and selectable 9/12/15/18 volts DC.
Burkey Flatliner SIX Junior
Toroidal transformerYes6 individually isolated outputs, each with 100mA and selectable 9/12 volts DC.Cheaper/simpler version of the Flatliner SIX.
Burkey PRO Rectifier
n/an/a (although the output that powers it is isolated from the source)12vDC, 700mA or 9vDC, 800mAAdd-on unit for the Flatliner PRO, which uses its AC output to provide power to Eventide and TC Nova pedals.
Caline CP-06, CP-06+ Portable Power
caline_cp07
Lithium polymer 8000mAh battery pack? (it claims to be, but most likely not)CP-06:
7 x 9vDC, 100mA
9vDC, 500mA

CP-06+:
4 x 9vDC, 100mA
2 x 9vDC, 500mA
USB charging port
Comes with a switching type adapter for charging the unit.
Caline CP-07
caline_cp07
Switching type adapterNo9vDC, 2000mAComes with daisy chain and converter cables.
Caline CP-08
caline_cp08
Toroidal transformer with mains voltage selector?6 x 9vDC, 100mA
2 x 9vDC, 300mA
12vDC, 300mA
18vDC, 300mA
Claimed to be isolated, and it's definitely possible. I remain sceptic, though, due to Caline's track record...
Caline CP-09 Tuner-Power
caline_cp09
External switching type adapter? (most likely no)6 x 9vDC, 100mA
2 x 9vDC, 500mA
Combined tuner and power supply. Runs off an 18vDC adapter.
Caline P1
caline_p1
External switching type adapter? (it claims to be, but most likely not)5 x 9vDC, 500mA
9/12vDC, 1000mA
9/15vDC, 1000mA
18vDC, 1000mA
Runs off an 18vDC adapter.
Carl Martin Big John
TransformerNo7 outputs with a total of 600mA @ 9vDCSame unit as the Cioks Big John, but rebranded for Carl Martin. Output connectors are gold plated.
Carl Martin Powerjack
Digital switchingn/a2000mA @ 9vDCSwitching type supply - works worldwide.
Carl Martin Pro Power
Transformer (toroidal?) with mains voltage selector.Yes8 isolated outputs, switchable between 9/12vDC.
Outputs 1-6: 150/110mA
Outputs 7-8: 350/220mA
Cioks AC Rider
TransformerYes, in groups2 groups of 2 9vDC jacks each, 75mA max per group
9 and 12vAC, 800mA (use either the 9 or 12vAC jack)
A simple solution if you need AC voltages, but don't have too many other pedals
Cioks Baby 2
TransformerYes, in groupsAll outputs 9vDC. 1-4 are shared, 200mA max. Output 5 (100mA) is isolated.18vDC possible via special cable (either Booster Flex or Stack Flex).
Cioks Big John
TransformerNo7 shared outputs with a total of 600mA @ 9vDC18vDC possible via Booster Flex cable.
Cioks Double Jack
TransformerNo5x9vDC, 2x12vDC - 600mA total18vDC (24vDC from the 12 volt outputs) possible via Booster Flex cable.
Cioks Power Bitch
TransformerYes, in sections3x9vDC, 150mA total
1x18vDC, 80mA
1x24vDC, 60mA unregulated
1x40vDC, 60mA unregulated
Great unit if you have a few 9vDC pedals and one of the oddball powered Electro-Harmonix ones
Cioks Schizophrenic
TransformerYes5 outputs selectable 9/12vDC, 75mA each
1 output selectable 18vDC, 40mA or variable 4-14vDC, 60mA
Basic 9/12vDC unit with isolation and one special output
Cioks DC8

Toroidal transformer with mains voltage selector.8 outputs total, in 6 isolated sections.Outputs 1-2: 9vDC, 100mA each
Outputs 3-4: 9/12vDC, 100mA each
Outputs 5-6: 9 and 12vDC, 300mA total
Outputs 7-8: 9 and 12v DC, 300mA total
Smaller version of the DC10. Comes with mounting kit for Pedaltrain boards.
Cioks DC10

Toroidal transformer with mains voltage selector.10 outputs total, in 8 isolated sections.Outputs 1-4: 9vDC, 100mA
Outputs 5-6: 9/12vDC, 200mA
Outputs 7-8: 9 and 12vDC, 400mA total
Outputs 9-10: 9 and 12/15v DC, 400mA total
Capable of running both normal 9vDC pedals and power-hogs like Eventide, TC Nova series, Tonebones etc. Comes with mounting kit for Pedaltrain boards. Also available in pink, as the "Pussy Power".
Cioks AC8

Toroidal transformer with mains voltage selector.8 outputs total, in 5 isolated sections.Outputs 1-2: 9vDC, 100mA total
Outputs 3-4: 9vDC, 100mA total
Outputs 5-6: 9/12vDC, 100mA each
Outputs 7-8: 9 and 12vAC, 800mA total
Smaller version of the AC10, capable of running a group of normal 9vDC pedals with one AC pedal (Digitech Whammy etc). Comes with mounting kit for Pedaltrain boards.
Cioks AC10

Toroidal transformer with mains voltage selector.10 outputs total, in 6 isolated sections.Output 1-2: 9V DC, 100mA
Output 3-4: 9/12vDC, 200mA
Output 5-6: 9 and 12/15vDC, 600mA*
Output 7-8: 9 or 12vAC, 800mA*
Output 9-10: 9, 12 or 16vAC, 800mA
* one output/section can be used
Capable of running both normal 9vDC pedals and power-hogs like Eventide, TC Nova series, Tonebones etc, plus 9vAC pedals like the Digitech Whammy and some tube pedals.
Cioks TC10

Toroidal transformer with mains voltage selector.10 outputs total, in 8 isolated sections.Output 1-4: 9vDC, 100mA each
Output 5-6: 12vDC, 300mA each
Output 7-8: 9 and 12vDC, 300mA total
Output 9-10: 9 and 12vDC, 400mA total
Specially designed to run both normal 9vDC pedals and TC electronic pedals
Cioks Ciokolate

Toroidal transformer with mains voltage selector.16 outputs total, in 9 isolated sections.Output 1: 4-15vDC, 100mA
Output 2-4: 9vDC, 100mA
Output 5: 18 or 24vDC, 100mA
Output 6-7: 9 or 12vDC, 200mA
Output 8-9: 9 or 12vDC, 400mA
Output 10-11: 9 and 12 or 15vDC, 400mA
*Output 12-13: 9 and 12 or 15vDC, 600mA
*Output 14: 9 or 12vAC, 800mA
Output 15-16: 9, 12 or 16vAC, 800mA
*Use one of these sections
Cioks AC Rider Link
Toroidal transformer with mains voltage selector.6 outputs, in 3 isolated sections.Output 1-2: 9 or 12v DC, 200mA
Output 3-4: 9 or 12v DC, 200mA
Output 5-6: 9 or 12v AC, 800mA
Accessory mains outlet can be used to link together with other supplies in the "Link" series, to fit your power supply needs.
Cioks ADAM Link
CIOKS-Adam-link
Transformer with mains voltage selector.YesOutput 1-2: 9 or 12v DC, 100mA
Output 3-4: 9v DC, 250mA
Extra slim design to fit under nano-sized pedalboards.
Cioks Big John Link
Toroidal transformer with mains voltage selector.6 outputs, in 4 isolated sections.Output 1-2: 9 or 12V DC, 100mA
Output 3-4: 9 or 12V DC, 100mA
Output 5-6: 9/12V DC, 400mA each
Accessory mains outlet can be used to link together with other supplies in the "Link" series, to fit your power supply needs.
Cioks DC5 Link
Cioks_DC5
Toroidal transformer with mains voltage selector.Yes9/12V DC, 300mA
9/12V DC, 300mA
9/18vDC, 100mA
9/12vDC, 100mA
9/12vDC, 100mA
No accessory mains outlet, but the mains input is positioned so it can be powered from another supply in the "Link" series.
Cioks Schizophrenic Link
Toroidal transformer with mains voltage selector.6 isolated outputsOutput 1-2: 9/18vDC, 100mA each
Output 3-4: 9vDC, 200mA each
Output 5-6: 9/12vDC, 200mA each
Accessory mains outlet can be used to link together with other supplies in the "Link" series, to fit your power supply needs.
Collins Power Station
Transformer (?)No8 outputs @ 9vDC - 800mA totalThe Collins version is sold via www.musik-produktiv.de. The same unit is sold in other parts of Europe, under different names.
Dan Electrode (Danelectro) DA-4
?No?Can be switched between fixed 9vDC output and adjustable 3-9vDC
Danelectro Zero Hum (DA-1)
Transformern/a200mA @ 9.6vDCHas been reported as having 300mA, but on the adapter itself it says 200, so...
Decibel 11 Hot Stone SM

Toroidal transformerYes (6 sections)Outputs 1-2: 9 and 12vDC, 300mA
Outputs 3-4: 9 and 12vDC, 300mA
Outputs 5-8: 9vDC, 100mA each
The first two isolated groups (outputs 1-2 and 3-4) have a 9vDC and 12vDC output, which share 300mA max. The remaining four are separately isolated 100mA outputs for regular pedals.This model is being replaced by the "SMD" below.
Decibel 11 Hot Stone SMD

DB11-SMD
Toroidal transformer with mains voltage selector.Yes (6 sections)Outputs 1-2: 9 and 12vDC, 400mA
Outputs 3-4: 9 and 12vDC, 400mA
Outputs 5-8: 9vDC, 100mA each
The first two isolated groups (outputs 1-2 and 3-4) have a 9vDC and 12vDC output, which share 400mA max. The remaining four are separately isolated 100mA outputs for regular pedals.New version which replaces the SM above.
Decibel 11 Hot Stone HC

Toroidal transformerYes (4 sections)Outputs 1-2: 9 and 12vDC, 400mA
Outputs 3-4: 9 and 12vDC, 400mA
Outputs 5-6: 9 and 12vDC, 400mA
Outputs 7-8: 9 and 12vDC, 400mA
Meant for higher current draw pedals. Each isolated group has a 9vDC and a 12vDC output that share 400mA max.
Decibel 11 Hot Stone Deluxe

HotStoneDeluxe_V2
Toroidal transformer with mains voltage selector.Yes (8 sections)Outputs 1-2: 9 and 12vDC, 400mA
Outputs 3-4: 9 and 12vDC, 400mA
Outputs 5-6: 9vDC, 100mA each
Outputs 7-8: 9 or 12vDC, 200mA each
Outputs 9-10: Variable 5-9vDC, 100mA each
New version - the old version (in the lighter grey box) is the same but with fixed input voltage.
Diago Powerstation
Digital switchingn/a3000mA @ 9vDCLooks very much like the laptop power supplies you can buy at electronics supply stores.
Digitech Hardwire V10 Power Block
Toroidal transformerYes4 x 9vDC, 140mA
2 x 9/12vDC 140mA (can be merged to 280mA)
2 x 9/12vDC 200mA (can be merged 400mA)
2 x 9vDC/5-12vDC 140mA
Dunlop/CAE Power System
Toroidal transformerYes8 x 9vDC, 80mA
4 x 18vDC, 125mA
2 variable 6-15vDC, 200mA
2 x 9vAC, 800mA
Designed by Bob Bradshaw. Rackmountable - it's wide, but not as big as it would seem. Courtesy mains outlet.
Dunlop DC Brick (DCB10)
External switching type adapterNo7 outputs @ 9vDC, 375mA max
3 outputs @ 18v DC, 625 mA max
Discontinued - replaced by a new unit sold under the MXR brand (scroll down to find it)
Dunlop ECB003
Transformern/a9vDC, 200mAEarlier model (with the same specs) was named ECB-03.
Dunlop ECB04
Transformern/a18vDC, 150mAAlso available in a digital switching 18vDC/1000mA version (ECB06) which was later replaced by the ECB-004. Those were used to power the DCB10 above.
EBS AD-9
Digital switchingn/a1000mA @ 9vDC2,4,5 & 6-way daisy chains (DC-x) also available.
Eventide PowerFactor
Toroidal transformer with mains voltage selector.Yes4x9vDC/100mA
3 high-current 9/12vDC outputs
Designed and built by Cioks.
Eventide PowerFactor 2
Powerfactor2
Toroidal transformer with mains voltage selector.YesOutputs 1-2: 9/12vDC, 100mA
Outputs 3-4: 9/12vDC, 200mA
Outputs 5-6: 9/12vDC, 400mA
Outputs 7-8: 12vDC, 400mA
Accessory mains AC output (fits Cioks Link series). Designed and built by Cioks.
Fulltone FPS-1, FPS-2
fulltone_fps
Transformern/a9vDC, 200mAFPS-1 is regular center negative, while FPS-2 is center positive.
Gator Cases G-BUS-8
Digital switching (separate power supply for the G-BUS)No1700mA max total
8x9vDC (250mA max/port)
3x18vDC (350mA max/port)
Runs off a separate power supply.
G-Lab PB-1
pb1_d
Digital switching (100-230vAC mains voltage).Yes8x9vDC, 350mA max each1000mA max from each group (1-4 and 5-8)Outputs 4 and 8 can be switched to reverse polarity. 12 and 15vDC requires special converter cable (available from G-Lab).
Godlyke Power-All
Digital switchingn/a2000mA @ 9vDCComes with daisy chain (5 non-isolated outputs) and 4 cable adapters
Harley Benton Power Plant

TransformerNo (the two 12 volt outputs may be isolated, but not the 9 volt ones)8x9vDC, 500mA total
12vDC + 12vAC, 250mA each
Looks like a copy of the T-Rex Fuel Tank Classic, but with less current from the two 12 volt outputs (which may or may not be isolated, like on the T-Rex). Sold by Thomann in Germany.
Harley Benton Power Plant JR
TransformerYes, assuming it's a close enough copy of the original unit5x9vDC, 120mA eachQuite obvious copy of the T-Rex Fuel Tank JR. Sold by Thomann in Germany.
J&H Power Supply IS3
JHT_IS3
External (switching type?) adapterIn sections (*)Output 1-3: 9vDC, 300mA each
Output 4-5: adjustable 6-9vDC, 300mA
*Output 6: 9/18vDC, 100mA
*Output 7-8: 9/12vDC, 400mA
2000mA total capacity

Outputs 6-8 isolated (not tested yet)
J&H Power Supply Nano II
JHT_Nano2
External (switching type?) adapterNo6x9vDC, 300mA each
9/12vDC, 300mA
9vDC, 300mA/18vDC, 50mA
1000mA total capacity

Original version (not "II") was the same as the Mosky Nano below.
Joyo Power Tune JF-18
joyo_JF18
External switching type adapter? (most likely no)6x9vDC, 100mA
2x9vDC, 500mA
Combined tuner and power supply.
Joyo Power Supply JP-01
External switching type adapterNo8x9vDC, 2x18vDC
Joyo Power Supply JP-02

External switching type adapterNo8x9vDC, 1x12vDC, 1x18vDCClaimed by Joyo to have isolated outputs, but not so. The outputs have been measured and confirmed to share a common ground. Also sold under other brand names (Ashton, Accel, Budagov, Caline, Mosky, Donner) - see the "rebranded" section below.
Joyo Power Supply 4 (JP-04)
Joyo_JP04
R-core (semi-toroidal) transformerYes (stated, not tested)5 x 9vDC, 100mA
2 x 9vDC, 250mA
12/18vDC, 100mA
Courtesy mains outlet.
Masotti Feed Box
Separate power supply (not suppiled)No4 outputs @ 9vDC, 600mA total
1 variable 7-12vDC, 100mA max
Use any power supply with 13-20 volts DC or AC, 800mA or bigger (13.5vAC/1000mA nominal). Unit is MXR-sized.
Masotti PW-4

TransformerYes, in groups4 isolated groups with 2 outputs each. Groups 1-3 are 9vDC/100mA, while group 4 is 9vDC/250mA.Can be ordered with custom voltage (5/9/12/15/18vDC) in one group, and/or one group with variable voltage.
Maxon AC2009
Digital switchingn/a2000mA @ 9vDCDigital switching type, also sold as a kit with a distribution box.
Modtone Power Cell
Modtone_PC
External adapterNo8x9vDC, 2000mA total
Modtone Power Plant

Toroidal transformer with mains voltage selector.YesVersion 1:
5 x 9/12vDC, 150mA
2 x variable 4-9vDC, 150mA
1 x 9vAC, 1000mAVersion 1.3:
5 x 9/12vDC, 100mA
2 x variable 4-9vDC, 200mA
1 x 9vAC, 1300mA
Courtesy mains outlet.  Sadly, my own (version 1) unit induced a hum in the 9vAC-powered pedal, a problem that seems to have been fixed in the latest (version 1.3) model.
Moen MISO-8
Moen_MISO8
TransformerYes (?)Output 1: variable 9-18vDC, 50mA
Output 2: variable 5-9vDC, 100mA
Outputs 3-6: 9/12vDC, 100mA
Outputs 7-8: 9vDC, 350mA
Courtesy mains outlet
Mooer Macro Power S8
mooer_macro_s8
Transformer with input voltage selectorYes (not confirmed)1 selectable 9/12/15/18vDC, 200mA
3x9vDC, 200mA each
4x9vDC, 400mA total
Outputs 1-4 are isolated, while outputs 5-8 share a single source.
Mooer Micro Power
Mooermicropower
External 12vDC adapterNo8x9vDC, 300mA eachWhile it says "isolated outputs" on the box, it is actually not isolated.
Moollon MPS-12 Power Supply
Toroidal (?) transformerYesOutputs 1-9:
9vDC, 100mA / 12.3vDC, 70mA
Outputs 10-12:
9vDC, 250mA / 12.3vDC, 200mA
Shown at NAMM 2011, and then nothing happened. It isn't listed on the Moollon website, but seems to be available from a few dealers.
Morley GS-1 Gas Station
Morleygasstation
External adapterNo8x9vDC, 250mA max each
(600mA max total load)
 Since the max capacity of the supplied adapter powering the GS-1 is 600mA, expect the actual useable max current to be 500mA max (still 250mA max from any one output).
Mosky DC Tank
Mosky_DCtank
External switching type adapterNo5x9vDC, 100mA
9vDC, 500mA
It says "isolated outputs", but it is clearly not so.
Mosky Nano Pedal Power Station
Mosky_nano
External switching type adapterNo6 x 9vDC, 300mA each
9/12vDC, 300mA
9vDC, 300mA (can be switched to center positive, 20mA max)1000mA max capacity in total
One output can be switched to center positive, 20mA max. That output is specifically meant for positive ground pedals, so it must also impart isolation. But that isn't confirmed (yet).
Mosky Zip

Mosky_Zip
TransformerYes1-4: 9vDC/100mA (switchable to 12vDC).
5-6: 9vDC/300mA (switchable to unregulated).
7-8: 9vDC/100mA (switchable to adjustable 4-9vDC)
Specs are similar to the Voodoo Lab Pedal Power 2+, although the transformer is lower quality (semi-toroidal/R-type instead of fully toroidal). Courtesy mains outlet.
MXR DC Brick (M237)
External switching type adapterNo8 x 9vDC, 1200mA total
2 x 18vDC, 800mA total
New version of the DC Brick. Uses regular center negative 2.1mm barrel type jacks for all outputs.
MXR Iso-Brick (M238)

IsoBrick
External 18vDC adapterYes2 x 9vDC, 100mA
2 x 9vDC, 300mA
2 x 9vDC, 450mA
2 x 18vDC, 250mA
2 x variable 6-15vDC, 250mA
All outputs isolated. Achieving this from a DC-powered supply is quite involved, but it can be done. This is the first DC-powered supply with isolated outputs I have seen.
N-Audio Powerbox MK2
Transformer (voltage selector optional)10 outputs, in 5 isolated sections.Section 1 and 2 (outputs 1-2, 3-4): 9/12vDC, 520/240mA per section
Section 3 (outputs 5-6): 9/15/18/24vDC, 600-100mA (higher voltage. lower current)
Section 4 and 5 (outputs 7-8, 9-10): 9vDC, 100mA per section
Each section has two outputs that share current capacity and voltage setting. So you could call it a 5 output supply with twin jacks for each output. Specs listed are for the updated (may 2016) version.
N-Audio Powerbox MK2 Pro

Powerboxpro
Transformer12 outputs, in 7 isolated sections.Section 1 and 2 (outputs 1-2, 3-4): 9/12vDC, 500mA per section
Section 3 (outputs 5-6): 9/12/15/18vDC, 250mA
Section 4 and 5 (outputs 7-8, 9-10): 9vDC, 50mA per section
Section 6 and 7 (outputs 11 and 12): 9vAC, 1200mA each
Basically a Powerbox Mk2 with two additional 9vAC outputs.
One Control Micro Distro
External switching type adapterNo8 linked 9vDC outputs (1950mA total with supplied adapter)
One 12-18vDC adjustable output (50mA max)
Basically a daisy chain in a box. Adjustable output limited to 50mA.
Palmer PWT05
??5 9vDC outputs. Capacity currently unknown.Pic borrowed from effectsdatabase.com
Palmer PWT08
Palmer_PWT08
Digital switching3 sections (not verified). Group 1: 6x9vDC
Groups 2 and 3: 9/12/18vDC
6 x 9vDC, 150mA each
2 x selectable 9/12/18vDC, 500mA
Powered from a separate 12vDC adapter. Very similar to the Vitoos DC8, but with more reasonable mA figures.
Palmer PWT-12
Toroidal transformer with mains voltage selector.Yes, in pairsOutputs 1-8, 11-12: 9vDC, 250mA per pair
Outputs 9-10: 18vDC, 125mA per pair
Outputs 7-8 switchable to reverse polarity. Output 9 switchable to 12vDC. Outputs 11-12 switchable to 12vAC.
Pedal Pad Power Pad
Digital switchingNo8 outputs @ 9vDC, 1670mA total.Courtesy mains outlet.Digital switching power supply with daisy chain-style outputs (common ground).
Pedaltrain Powertrain 1250

pt-powertrain1250
Transformer with mains voltage selector.Yes, in groupsOutput 1: 9/12/15/18vDC, 150mA
Outputs 2-4: 9vDC, 210mA each with adjustable sag feature
Outputs 5-8: 9vDC, 500mA combined
Pedaltrain Volto
pt-volto4
Battery packNo9vDC, 2000mA max (battery capacity is 5000mAh)Designed to fit underneath Pedaltrain pedalboards. Comes with charger and daisy chain cables.
Pigtronix Power

pigtronix_power
Transformer with mains voltage selectorYes2 x 9vDC, 100mA
2 x selectable 9/12/15/18vDC, 100mA
2 x selectable 9/12/15/18vDC, 300mA
2 x 18vDC, 300mA
Rifftone M-80 Power Station
Rifftone_M80
External 18vDC adapterNo8x9vDC, 100mA each
12vDC, 100mA
18vDC, 100mA
The manufacturer mentions a special 9vDC, 500mA output below the 12vDC output, but it isn't seen in the photos.
Riot Black Box DCT100
TransformerNo (the two 12 volt outputs may be isolated, but not the 9 volt ones)8x9vDC, 500mA total
12vDC + 12vAC, 250mA each
Same unit as the Harley Benton Power Plant. A copy of the T-Rex Fuel Tank Classic, but with less current from the two 12 volt outputs (which may or may not be isolated, like on the T-Rex).
Riot DC Power
Digital switchingn/a9vDC, 800mA
Rocktron DC OnTap
Digital switchingn/a1670mA @ 9vDCComes with daisy chain and cable adapters. Specs are very similar to the 1spot and Godlyke Power-All.
Rocktron PowerTap
Rocktron-power-tap
TransformerYesOutputs 1-5: 9/12vDC, 150mA
Outputs 6-7: adjustable 4-9vDC, 400mA
Output 8: 9vAC, 1300mA
Three accessory mains AC outputs.
Rothwell Stompjuice
Transformer with mains voltage selector.No6 outputs with a total of 600mA @ 9vDC
Sanyo Pedal Juice

Rechargeable battery packNoApprox 2Ah. Battery time varies with the load (1 hour at 2000mA, 7 hours at 300mA, 50 hours at 10mA). Do take those time estimates with a grain of salt, though - as with any battery, the voltage usually drops below the useable range well before the supply runs out.About the same size as a pedal. Also available in black, if you so desire :)
Signal Flex PS-9
TransformerNo5 outputs @ 9vDC, 450mA total.The same unit seems to appear under several different names ("Power Bank" and "Sound Lab", among others). See the "rebranded" section below.
SKB PDU12

Transformer with mains voltage selector.All outputs individually isolated2x9vAC/1300mA
2 variable 4-12vDC
4x9vDC
2x18vDC
2 selectable 9/12vDC
All DC outputs 100mA
1HE rack unit, same as the power section on the PS-55 pedalboard. All outputs selectable polarity. Unit also contains a cable tester.
Strymon Ojai
strymon_ojai
Separate 24vDC switching adapterYes5 x 9vDC, 500mA each24vDC output allows you to link more Ojais together, for more outputs.
Strymon Zuma
strymon_zuma
SwitchingYes7 x 9vDC, 500mA each

2 selectable
9vDC, 500mA
12vDC, 375mA
18vDC, 250mA
24vDC output allows you to link to an Ojai, for more outputs.
The GigRig Generator
 Switchingn/a (the unit is used to link to distributor and isolator units)9vDC/5000mA2 Boss-style daisy chains provided with the unit.
T-Rex Fuel Tank Chameleon
Transformer with mains voltage selector.YesAll outputs are 300mA (output 4 is 150mA when switched to 18vDC).
1-3: 9/12vDC
4: 9/18vDC
5: 9/12vDC
6: 12vAC.
Outputs 5 and 6 should not be used simultaneously.
T-Rex Fuel Tank Classic
Transformer with mains voltage selector.In groups9 outputs @ 9vDC, 500mA total (not isolated), isolated 12vDC and 12vAC outputs w/ 500mA eachAll 9vDC outputs are wired in parallel.
T-Rex Fuel Tank Goliath
Transformer with mains voltage selector.Yes5 outputs @ 9/12vDC, 450mA
18vDC, 250mA
12vAC, 450mA
T-Rex Fuel Tank Juicy Lucy
TransformerYes5 outputs w/ 12vDC, 300mA each. Supplied "current doubler" cable combines two outptuts for 600mA.Designed to run the more power-hungry T-Rex pedals (Replica, Roommate etc), but will work with anything that can handle 12 volts DC.
T-Rex Fuel Tank JR
Transformer with mains voltage selector.Yes5 outputs with 9vDC, 120mA each. Supplied "voltage doubler" cable combines two outputs for 18vDC, 120mA.Smaller and less powerful than the regular Fuel Tank, but with isolated outputs. Original version with attached mains cable did not have 115/230 voltage selector.
Truetone 1-spot

Digital switchingNo1700mA @ 9vDCLots of accessories (daisy chains, various converter cables etc) available. Originally sold under the Visual Sound brand.
Truetone 1-spot Pro CS 7
1spot_CS7
Switching (?)YesOutput 1: 18vDC, 100mA
Output 2-5: 9/12vDC, 200mA
Output 6-7: 9vDC, 500mA
100-240vAC mains input.
Truetone 1-spot Pro CS 12

1spot_CS12
Switching (?)YesOutput 1-2: 18vDC, 100mA
Output 3-6: 9/12vDC, 100mA
Output 7: 9 or 4-9vDC, 100mA
Output 8-9: 9vDC, 250 mA
Output 10-11: 9vDC, 500mA
Output 12: 9vAC, 800mA (5.5x2.5mm jack)
Mains voltage selector.
Vinteck L'overpowersupply
External transformerNo (?)10 individually regulated outputs, selectable 9/12vDC, 2 12vAC. 3000mA max total.No mention of isolation (which, since the transformer is in a separate box, would be hard to do). Also available with a buffer/line driver section.
Vitoos DC8 Power Pack
Vitoos_DC8
Digital switching3 sections (not verified)6x9vDC, 300mA
2 x selectable 9/12/18vDC, 1000mA
2000mA max capacity total.
Powered from a separate 12vDC/2000mA switching type adapter. Isolated in 3 sections (the 9vDC outputs and the two selectable outputs).
Vitoos VP1 (DC-10X)
Digital switchingNo8x9vDC, 150mA each
2x18vDC, 1000mA total
Powered from a separate 18vDC/2000mA switching type adapter. Essentially a daisy chain in a box.
Vitoos VP2
TransformerNo8x9vDC, 75mA eachPowered from a separate 9vDC/600mA linear (transformer-based) adapter. Claimed to have isolated outputs, but is in fact another daisy chain in a box.
Voodoo Lab Pedal Power 2 Plus

Toroidal transformerYes8 isolated outputs.
1-4: 9vDC/100mA (switchable to 12vDC/60mA).
5-6: 9vDC/250mA (switchable to unregulated for Line 6 modelers).
7-8: 9vDC/100mA (switchable to adjustable 4-9vDC).
Two outputs can be combined in series to double the voltage, or in parallel to double the mA. Courtesy mains outlet.
Voodoo Lab Pedal Power AC
Toroidal transformerYes4 isolated outputs. 2 x 9vAC, 600mA; 2 pairs of outputs with 9 and 12vAC, 1200 mA respectively (choose either the 9 or 12 volt output from each pair).Same size as the PP2+. Courtesy mains outlet.
Voodoo Lab Pedal Power Digital
Toroidal transformer (?)Yes, in groupsGroup 1 and 2: 9 and 12vDC, 400mA (choose either the 9 or 12 volt output from each pair)
Group 3 and 4: 9vDC, 400mA
Designed to run higher-current pedals like Eventides etc. Pic borrowed from effectsdatabase.com
Voodoo Lab Pedal Power ISO5
Toroidal transformerYes3 x 9vDC/100mA (isolated)
9 and 12vDC, 300mA (isolated from the others, but not from each other)
1 x 18vDC, 100mA (isolated)
Smaller version of the Pedal Power 2+. Five isolated outputs/groups. The 9 and 12v/300mA outputs share the same source, so if you use both, the total draw can't be more than 300mA.
Voodoo Lab Pedal Power 4x4
Toroidal transformerYes2 x 9/12vDC, 400mA
2 x 9vDC, 400mA
4 x 9vDC, 100mA
Voodoo Lab Pedal Power Mondo

Toroidal transformerYes2 x 9/12vDC, 400mA (two isolated groups - the 9 and 12v jacks are not isolated from each other)
2 x 9vDC, 400mA
4 x 9vDC, 100mA (switchable to 12vDC/60mA)
2 x 9vDC, 250mA (switchable to unregulated for Line 6 modelers)
2 x 9vDC, 100mA (switchable to adjustable 4-9vDC)
 Basically a Pedal Power Digital and Pedal Power 2+ combined into the same box.Courtesy mains outlet.
Walrus Audio Aetos
walrus_aetos
Toroidal transformerYes6 x 9vDC, 100mA
2 x 9vDC, 250mA
Courtesy mains outlet.
Walrus Audio Phoenix
walrus_phoenix
2 x toroidal transformerYes8 x 9vDC, 100mA
4 x 9vDC, 300mA
2 x 9/12vDC, 100mA
9/18vDC, 100mA
Courtesy mains outlet.
Yankee PS-M0
Yankee_PS-M0
Toroidal transformerYesTwo isolated outputs with 9vDC, 900mA eachMovable IEC mains input (rear or top location). 120vAC model available on request.
Yankee PS-M1
Yankee_PS-M1
Toroidal transformerYes, in sectionsIso 1: 5x9vDC, 1200mA total
Iso 2: 5x9vDC, 1200mA total
Movable IEC mains input (rear or top location). USB port with supplied diode lamp for lighting up pedalboard. 120vAC model available on request.
Yankee PS-M12

Yankee_PS-M12
Toroidal transformerYes, in sectionsIso 1:
5x9vDC, 900mA total
Iso 2:
2 x selectable 6-24vDC, 600mA total
Iso 3:
9vAC, 12vAC 1200mA total (use only one output at a time)
Movable IEC mains input (rear or top location). USB port with supplied diode lamp for lighting up pedalboard. 120vAC model available on request.
Yankee PS-M2

Yankee_PS-M2
Toroidal transformerYes, in sectionsIso 1-2:
9vDC, 1200mA each (5 outputs per section)
Iso 3:
2 x adjustable 1-10vDC, 600mA total
Iso 4:
2 x selectable 6-24vDC, 600mA total
Iso 5:
9vAC, 12vAC, 14vAC, 2000mA total
Movable IEC mains input (rear or top location). USB port with supplied diode lamp for lighting up pedalboard. 120vAC model available on request.
Yankee PS-9/1800
Yankee_PS-9_1800
Toroidal transformerYes, in sectionsTwo isolated sections with 9vDC, 900mA eachIntegrated daisy chains with 4 plugs per isolated section. 230vAC only.
Yankee PS-9/1000, PS-9/700
Yankee_PS-9_1000
TransformerNo9vDC, 1000 or 700mAIntegrated daisy chain with 6 (PS-9/1000) or 4 (PS-9/700) plugs. 230vAC only.
Yankee PS-9/120, PS-18/90
Yankee_PS-9_120
TransformerNo9vDC, 120mA or 18vDC, 90mA230vAC only.
The rebranded section
"Original" unit
Rebranded units
Alctron DCT-200
Fame DCT-200Proel PSU110Rifftone RT-10
Joyo JP-02
Ashton PowerbarBudagov Jericho 2Accel FX Power Source 10M (mounting flanges added to the body)Caline CP-05
Donner DP-1 Pedal PowerMosky DC Core 10Nordell Audio Power CoreVitoos PS1
Signalflex PS-9
Power Bank (Maplin)Sound Lab Pedal Power 450

Note: most pictures are from manufacturer’s websites, or as supplied by manufacturers to retailers. If you (as the manufacturer or retailer) feel a picture is misrepresenting your product and you want me to take it down, or if you have a better one you’d rater I use, e-mail me at andreas (at) stinkfoot.se and I’ll be happy to oblige.

The golden rules of using power supplies:

Get a proper adapter. If it isn’t specifially made for audio applications (i.e. if it’s a generic ”will replace all adapters” type), it’s not made for audio applications, and shouldn’t be used. Yes, the same rules still apply – get the plug polarity, voltage and current (mA) capacity right, and it will work – but it probably isn’t well enough filtered. Your rig will show its dislike by humming loudly…

Get to know your pedals – before you plug in any adapter. Find out what kind of power they want (AC or DC), how much of that power they want (current draw in mA), and how it wants it delivered (plug/jack polarity). If the pedal says ”9vAC” or ”9v ~”, you can’t use the same adapter as to your Boss pedals. AC means ”alternating current”, which alters direction 50-60 times per second. DC means ”direct current”, which flows evenly from positive to negative. Also, if you plan on buying a switching type adapter, make sure it will not clash with your delay/reverb etc pedals (digital pedals and clock-based analog ones) – if you hear a faint whining sound, the switching adapter will not work for you, and the only recourse is to get a transformer based adapter.

Forget the terms ”negative tip” and ”positive tip” – those terms apply to the 1/8″ mini tele plug that to my knowledge now only is used on the ProCo RAT, the Ibanez reissue TS-808 and the old-style DOD pedals (all of which want a positive tip, btw). You might also find one or two Electro-Harmonix pedal in this group (beware, though – not all of the E-H pedals use 9 volts DC). All other ”normal” pedals use a 2.1mm barrel type plug, with the positive carried on the outside of the plug. The center pin in the adapter jack is therefore negative, and the term is ”center negative”. But plug polarity is one thing – ground polarity is another thing you need to know about. Again, most pedals (all ”normal” effects such as Boss, Ibanez etc) are the same – they have negative ground (battery ”-” goes to ground). But some effects – mainly ”boutique-type” germanium fuzz pedals – have positive ground instead. On those pedals, the adapter jack polarity is normally also reversed, but they don’t have to be – it doesn’t have anything to do with the fact that they are positive ground. The main thing to remember is that you can’t feed these pedals power from the same source (daisy chain or non-isolated psu) as you use for the others – that will short the entire power supply out, and make your pedals go quiet (at best – at worst, your gear will be damaged). For those pedals, you have to either use batteries, get a separate adapter (check the plug polarity), or get a psu with isolated outputs. Check the list above – there are only a handful of power supplies with isolated outputs.

You can never have too much power. You can kill your pedals with too much voltage, but not by the adapter having too much current. The pedals will only draw as much current as they need, regardless of the amount available from the adapter. But the bigger the adapter, the less strain you’re putting on it. A rig that draws 185 mA in total really needs a bigger adapter than 200mA – you don’t keep your car in first gear, at 5000 rpm, just because the redline is at 6000, do you? So, basically, unless there are other limitations – such as finances, for instance, or that you’re using the ”power thru” jack on a Boss TU-2/LS-2/NS-2/PSM-5 (which aren’t guaranteed for more than 200mA) – get quite a bit more than you technically need.